Governor connection for phonograph-motors.



E. P. MORRIS.-

GOVERNOR CONNECHON FOR PHONOGRAPH MOTORS.

APPLICATION FILED APR.17, I908.

Patented Aug. 3,. 1915.

COLUMBIA PLANOORAPH co., WASHINGTON. 1::v c.

AT EIQ.

EDWARD 1?. MORRIS, OF WEST ORANGE, NEW JERSEY, ASSIGNOR TO NEW JERSEY PATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

GOVERNOR CONNECTION FOR PHONOGRAPI-I-MOTORS.

Application filed April 17, 1908.

To all whom it may concern Be it known that I, EDWARD P. MORRIS, a citizen of the United States, and a resident of West Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Governor Connections for Phonograph-Motors, of which the following is a description.

In the operation of phonographs driven by high speed motors, it has been found that those parts of the motor which are revolved at high speed, such as the main driving shaftand governor shaft, tend to set up vibrations which produce a humming sound and thereby detract from the quality of the phonographic reproduction.

My invention has for its object the provision of means for eliminating such vibrations and I have shown the same in connection with a spring motor of ordinary form, but it will be understood that it is capable of being applied to other types of motor.

In order that the invention may be more fully understood, reference is hereby made to the accompanying drawing of which Figure lis a front elevation of a motor to which my invention is applied and Fig. 2 is an end elevation thereof.

The motor shown is of ordinary form comprising a spring barrel 1 and various gears and countershafts, the whole being mounted in the frame 2, which is suspended from the body of the phonograph. The main shaft 3 which revolves at a speed suitable for driving the mandrel of the phonograph, is provided with a pulley 4 over which the drive belt passes and said pulley is secured to said shaft by a spring rod 5, the ends of which are secured to the rim of the pulley, said rod fitting tightly in an opening 6 formed in the said shaft 3 and passing through an opening 7 formed in the hub of the pulley 4, and of substantially greater diameter than said rod. The pulley 4 is free to turn upon the shaft 3, except as it is restrained by the spring rod 5, so that variations in the driving torque of the shaft 3 or of the load upon the pulley 4 will cause the latter to oscillate upon the said shaft owing to the elasticity of the rod 5, and vibrations due to a hammering action or Specification of Letters Patent.

Patented Aug. 3, 1915'.

Serial No. 427,678.

unbalanced condition of said rotating parts are prevented. The governor shaft 8 which is suitably gournaled in the frame 2 is driven from the main shaft 3 through the spur gears 9 and 10 in the usual manner. The governor comprises a plurality of flat springs 11 to the centers of which are applied the centrifugal weights 12. One end of each of said springs is secured to a sleeve 13 slidable upon the shaft 8 and formed with a flange 14 which acts as the rotary friction member, and cooperates with the usual friction pad for regulating the speed of the motor. The other ends of the springs 11 are secured to a sleeve 15 and said sleeve is loose upon the shaft 8 and is connected by a spring rod 16 with a sleeve 17 secured to the shaft 8 in any suitable manner, as by a set screw 18. The axis of rod 16 is eccentric to shaft 3 and normally extends substantially parallel to said shaft. The rod 16 and sleeve 17 are located between sleeves 13 and 15, a very compact construction being thus obtained.

It will be observed that while the spring rod 16 tends to prevent any sliding movement of the sleeve 15 due to the action of the weights 12, its resilience permits a rotary oscillation of said sleeve upon said shaft 8, due to variations in the speed of said shaft, the coacting bearing surfaces of the said shaft and sleeve being cylindrical. It will be found in operation that by the resilient mounting of the drive pulley 4 upon the shaft 3, and the sleeve 15 upon the shaft 8, humming sounds due to rapid vibrations of the motor frame are practically eliminated.

Having now described my invention, what I claim is:

1. In a phonograph motor, the combination of the governor shaft, a friction disk sleeve slidable thereon, a second sleeve loose on said shaft, weighted springs secured at their ends to said sleeves, and means connecting said second sleeve to said shaft for transmitting the power of said shaft to said second sleeve, said means being resiliently yielding in a direction at right angles to said shaft, but unyielding in a direction parallel to said shaft, substantially as set forth.

2. In a phonograph motor, the combinaof said shaft to said sleeve, substantially as set forth.

3. In a phonograph motor, the combination of a governor shaft, a friction disk slidable thereon, a sleeve loosely mounted on said shaft,'means connecting said disk and sleeve to vary the distance between the same according to the speed of rotation of the governor shaft, and means connected to said sleeve and shaft for transmitting the power.

of said shaft to said sleeve, said means being resiliently yielding to permit rotation of said sleeve on said shaft but serving to hold said sleeve substantially against movement longitudinally of said shaft, substantially as set forth.

4. In a phonograph motor, the combination of a governor shaft, a friction disk slidable thereon, a sleeve loosely mounted on said shaft, means connecting said disk and shaft to vary the distance between the same according to the speed of rotation of said governor shaft, and means comprising a spring rod extending longitudinally of said shaft and located with its axis eccentric to said shaft for transmitting the power of said shaft to said sleeve, said rod being resiliently yielding to permit rotation of said sleeve on said shaft but serving to hold said sleeve against substantial movement longitudinally of said shaft, substantially as set forth.

5. In a phonograph motor, the combination of a governor shaft, a friction disk sleeve slidable thereon, a second sleeve loose on said shaft, weighted springs secured at their ends to said sleeves, and means located between said sleeves and connecting said second sleeve to said shaft for transmitting the power of said shaft to said second sleeve, said means being resiliently yielding to permit rotation of said second sleeve on said shaft but serving to hold said second sleeve against substantial movement longitudinally of said shaft, substantially as described.

6. In a phonograph motor, the combination of a governor shaft, a friction disk slidable thereon, a sleeve loosely mounted on said shaft, means connecting said disk and shaft to vary the distance between the same according to the speed of rotation of the governor shaft, and means comprising a spring rod extending longitudinally of said shaft and located between said disk and sleeve with its axis eccentric to said shaft for transmitting the power of said shaft to said sleeve, said rod being resiliently yielding to permit rotation of said sleeve on said shaft but serving to hold said sleeve against substantial movement longitudinally of said shaft, substantially as described.

This specification signed and witnesses this 15th day of April 1908.

EDWARD P. MORRIS.

WVitnesses:

FRANK D. LEWIS,

H. H. DYKE.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

